I use a Rio 600 that came with my skimmer. I have a maxijet 900 on my skimmer, so the rio just sits around. I went to HD and boutght 15' of 1/2" tubing. I cable tied it to the output of the rio.
Now I drop the rio into the tank, and the other end into the bucket, then plug it in.
I use the same setup to pump new water into the tank.